CA2434980C - Purification of 2-nitro-4-methylsulphonylbenzoic acid - Google Patents

Purification of 2-nitro-4-methylsulphonylbenzoic acid Download PDF

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Publication number
CA2434980C
CA2434980C CA2434980A CA2434980A CA2434980C CA 2434980 C CA2434980 C CA 2434980C CA 2434980 A CA2434980 A CA 2434980A CA 2434980 A CA2434980 A CA 2434980A CA 2434980 C CA2434980 C CA 2434980C
Authority
CA
Canada
Prior art keywords
nitro
methylsulfonylbenzoic acid
acid
mesotrione
steps
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CA2434980A
Other languages
English (en)
French (fr)
Other versions
CA2434980A1 (en
Inventor
Kambiz Javdani
Gilbert Rodriguez
James Peter Muxworthy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Syngenta Participations AG
Original Assignee
Syngenta Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23050721&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2434980(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Syngenta Ltd filed Critical Syngenta Ltd
Publication of CA2434980A1 publication Critical patent/CA2434980A1/en
Application granted granted Critical
Publication of CA2434980C publication Critical patent/CA2434980C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C315/00—Preparation of sulfones; Preparation of sulfoxides
    • C07C315/06—Separation; Purification; Stabilisation; Use of additives

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CA2434980A 2001-03-26 2002-03-25 Purification of 2-nitro-4-methylsulphonylbenzoic acid Expired - Lifetime CA2434980C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US27506101P 2001-03-26 2001-03-26
US60/275,061 2001-03-26
PCT/GB2002/001433 WO2002076934A2 (en) 2001-03-26 2002-03-25 Purification of 2-nitro-4-methylsulphonylbenzoic acid

Publications (2)

Publication Number Publication Date
CA2434980A1 CA2434980A1 (en) 2002-10-03
CA2434980C true CA2434980C (en) 2010-07-06

Family

ID=23050721

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2434980A Expired - Lifetime CA2434980C (en) 2001-03-26 2002-03-25 Purification of 2-nitro-4-methylsulphonylbenzoic acid

Country Status (24)

Country Link
US (1) US7285678B2 (es)
EP (1) EP1377544B2 (es)
JP (1) JP3911237B2 (es)
KR (1) KR100858546B1 (es)
CN (1) CN1250525C (es)
AR (1) AR033205A1 (es)
AU (1) AU2002249384B2 (es)
BR (1) BR0207414A (es)
CA (1) CA2434980C (es)
CZ (1) CZ303984B6 (es)
DK (1) DK1377544T4 (es)
ES (1) ES2488840T5 (es)
GT (1) GT200200060A (es)
HU (1) HU230861B1 (es)
IL (2) IL157176A0 (es)
MX (1) MXPA03008279A (es)
PL (1) PL363837A1 (es)
PT (1) PT1377544E (es)
RU (1) RU2287521C2 (es)
SK (1) SK11812003A3 (es)
TW (1) TWI224091B (es)
UA (1) UA79741C2 (es)
WO (1) WO2002076934A2 (es)
ZA (1) ZA200306327B (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0323090D0 (en) * 2003-10-02 2003-11-05 Syngenta Participations Ag Novel process
TWI348999B (en) * 2003-10-02 2011-09-21 Syngenta Participations Ag Process
GB0406894D0 (en) * 2004-03-26 2004-04-28 Syngenta Participations Ag Process
GB0419075D0 (en) * 2004-08-26 2004-09-29 Syngenta Participations Ag Process
CN101384547B (zh) * 2006-01-18 2013-07-17 先正达参股股份有限公司 甲基磺草酮的结晶工艺
CN104059001B (zh) * 2013-03-18 2016-06-08 华中师范大学 一种邻硝基砜基苯甲酸的制备方法
US20160280641A1 (en) * 2013-11-04 2016-09-29 Yutian Shao Method for refining 2-nito-4-methylsulfonyl benzoic acid and intermediate thereof
CN103910659B (zh) * 2013-11-04 2016-05-11 迈克斯(如东)化工有限公司 2-硝基-4-甲磺酰基苯甲酸的精制方法及其中间体
CN104829506B (zh) * 2015-04-09 2016-08-17 浙江嘉化能源化工股份有限公司 高纯2-硝基-4-甲砜基苯甲酸的工业化生产方法
GB2530838B (en) 2015-06-08 2020-01-22 Rotam Agrochem Int Co Ltd Process for purifying mesotrione
JP2017137243A (ja) * 2016-02-01 2017-08-10 エア・ウォーター株式会社 ２−ニトロ−４−メチルスルホニル安息香酸の製造方法
CN105669504A (zh) * 2016-03-07 2016-06-15 山东润博生物科技有限公司 一种2-硝基-4-甲砜基苯甲酸的制备方法
CN106699616A (zh) * 2016-11-17 2017-05-24 北京颖泰嘉和生物科技股份有限公司 一种新的2‑硝基‑4‑甲磺酰基苯甲酸的纯化方法
CN111302987A (zh) * 2018-12-12 2020-06-19 北京颖泰嘉和生物科技股份有限公司 2-硝基-4-甲磺酰基苯甲酸的精制方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5006158A (en) * 1984-12-20 1991-04-09 Ici Americas Inc. Certain 2-(2-substituted benzoyl)-1,3-cyclohexanediones
JP2849470B2 (ja) * 1988-12-07 1999-01-20 アイシーアイ アメリカズ インコーポレイテッド ２―（クロロ，ブロモ，またはニトロ）―４―（アルキルスルフォニル）安息香酸の調製および中間体
US5079381A (en) † 1990-09-28 1992-01-07 Imperial Chemical Industries Plc Method for the preparation of 4-methylsulfonyl benzoic acid derivatives and intermediates
US5055605A (en) 1990-10-15 1991-10-08 Imperial Chemical Industries Plc Preparation of trisubstituted benzoic acid precursors
DE4235155A1 (de) * 1992-10-19 1994-04-21 Basf Ag Verfahren zur Herstellung von Methylsulfonylbenzoesäuren
US5591890A (en) † 1995-11-03 1997-01-07 E. I. Du Pont De Nemours And Company Process for producing ortho-nitro aromatic acids by oxidation of ortho-nitroalkylaromatic compounds
GB9725135D0 (en) * 1997-11-27 1998-01-28 Zeneca Ltd Chemical process

Also Published As

Publication number Publication date
EP1377544B1 (en) 2014-06-18
US20040171872A1 (en) 2004-09-02
CZ20032548A3 (cs) 2004-02-18
RU2287521C2 (ru) 2006-11-20
KR20030086280A (ko) 2003-11-07
WO2002076934A3 (en) 2003-02-20
AR033205A1 (es) 2003-12-10
WO2002076934B1 (en) 2003-04-03
PL363837A1 (en) 2004-11-29
DK1377544T4 (en) 2017-10-30
IL157176A0 (en) 2004-02-08
ES2488840T3 (es) 2014-08-29
JP3911237B2 (ja) 2007-05-09
HU230861B1 (hu) 2018-10-29
UA79741C2 (en) 2007-07-25
EP1377544A2 (en) 2004-01-07
PT1377544E (pt) 2014-08-26
SK11812003A3 (sk) 2004-04-06
ES2488840T5 (es) 2017-12-11
RU2003131328A (ru) 2005-01-27
IL157176A (en) 2010-02-17
MXPA03008279A (es) 2003-12-12
EP1377544B2 (en) 2017-08-23
CZ303984B6 (cs) 2013-07-31
CA2434980A1 (en) 2002-10-03
WO2002076934A2 (en) 2002-10-03
KR100858546B1 (ko) 2008-09-12
JP2004525145A (ja) 2004-08-19
ZA200306327B (en) 2004-09-03
US7285678B2 (en) 2007-10-23
CN1500077A (zh) 2004-05-26
DK1377544T3 (da) 2014-08-11
HUP0302530A2 (hu) 2003-11-28
HUP0302530A3 (en) 2005-11-28
AU2002249384B2 (en) 2007-06-07
BR0207414A (pt) 2004-08-10
CN1250525C (zh) 2006-04-12
TWI224091B (en) 2004-11-21
GT200200060A (es) 2002-12-24

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